Archive for the ‘Safety’ Category

Manifold Inspection

Safe Inspection of Pressure Vessels

When is Disassembly Required? Owners and operators of high pressure gas distribution equipment, such as tube trailers and multiple-element gas containers (MEGCs), are required to recertify the equipment’s DOT and UN pressure vessels every 5 to 10 years.  Depending... Read more
tube-markings

DOT UN Tube Fill Pressure

DOT Regulations – Pressure DOT UN tubes manufactured per DOT regulation and ISO standard 11120 shall be filled in accordance with 49 CFR Section 173.302b(b), which states:  “UN pressure receptacles filling limits.  A UN pressure receptacle is authorized for... Read more
integral-bullplug

Tube Trailer Safety Enhancement

ABOVE: A bullplug designed with a shear-off valve (left) can help improve tube trailer safety and potentially avoid dangerous accidents (right). While the majority of tube trailers and skid containers already have a design that includes a rigid, protective... Read more